Thelocactus conothelos var. aurantiacus Thelocactus flavus Thelocactus panarottoanus Thelocactus conothele var. aurantiacus Torreycactus conothelos subsp. aurantiacus Torreycactus conothelos var. aurantiacus Thelocactus conothelos subsp. flavus
World Flora Online, accessed June 20, 2024